Performance based investigations of structural systems under fire

Filippo Gentili, Chiara Crosti, Luisa Giuliani

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Abstract

Prescriptive measures and procedures developed over the past here are mostly aimed at preventing structural failures of single elements for the time required for the evacuation. The response to fire and fire effects of the structural system as a whole remains often unknown and the survival of the construction after this time cannot always be granted. This is even more true in case of unaccounted events like human errors or rare but severe occurrence like a fire after explosion, which cannot be contemplated in the usual design. Even if a structure could be hardly designed to resist fully integer all these kinds of events, the mitigation of possible collapse induced by fire should be achieved. In this respect, a performance-based investigation of the structure aimed at highlight fire effects and fire-induced collapse mechanisms becomes of interest. In the paper collapse mechanisms of some simple structures are presented and discussed, with particular attention to methodological aspects. The effects of different assumptions in the modeling and in the definition of the collapse are highlighted, as critical aspects of a performance-based investigation.
Original languageEnglish
Title of host publicationAdvances and Trends in Structural Engineering : SEMC 2010 Proceedings
Number of pages388
Place of PublicationLondon
PublisherTaylor & Francis
Publication date2010
Edition1st
ISBN (Print)9780415584722
Publication statusPublished - 2010
Event4th International conference on Structural Engineering, Mechanics and Computation : Special session on Fire Safety - Cape Town, South Africa,
Duration: 1 Jan 2010 → …
Conference number: 4th

Conference

Conference4th International conference on Structural Engineering, Mechanics and Computation : Special session on Fire Safety
Number4th
CityCape Town, South Africa,
Period01/01/2010 → …

Keywords

  • Fire safety, Performance-based fire design (PBFD), Fire-induced collapses, Catenary action, Sway and non-sway collapse.

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